Sweet potato
Companion plants for sweet potatoes
The best companion plants for sweet potatoes are corn, tomatoes and okra. None of the plants we track is a clear bad neighbour. Of the 3 plants we have data on, 3 are good neighbours, 0 are bad ones and 0 are contested. 2 of these verdicts rest on field trials or research papers; the rest come from traditional companion-planting charts.
- 3 good
- 0 to avoid
- 0 contested
- 2 tested in trials or papers
Neighbours of sweet potatoes at a glance
Inner rings are backed by trials or papers, outer rings by charts only. Pick a plant to see its sources.
The interactive map needs JavaScript. Every plant on it is listed below with its evidence.
Good companion plants for sweet potatoes
Biggest harvest gain first, then the plants tested without a yield count. Each row links to the full evidence for the pair.
| Plant | What trials found with sweet potatoes | Tested by | Garden charts |
|---|---|---|---|
 Sweet corn |
40% more harvest from the same space | Field trial2 studies | Not listed |
 Tomato |
Lures pests away | Field trial1 study | Not listed |
Harvest from the same space compares a bed with both crops against the same area split into single-crop beds, counting the harvest of both crops (the land equivalent ratio in yield trials).
Recommended by garden charts, not tested yet
We found no trial or paper on these pairs with sweet potatoes. They may still work; nobody has measured it.
What not to plant with sweet potatoes
No plant in our data is a clear bad neighbour for sweet potatoes.
Sources
3 sources behind the verdicts on this page. 4 chart entries cite no source and are marked as tradition only.
What grows well with your sweet potatoes?
Share what worked next to your sweet potatoes and what did not, or ask other growers a question. Reader notes are not checked by us and do not change the verdicts on this page.